Transom-lifter.



PATBNTED MAR. 24, 1903` 0. N. EATON.

TRANSOM LIFTER. APPLIOATION FILED JUNE 24. 1902.

N0 MODEL.

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UNITED STATES PATENT EFICE.

OLIVER NELSON EATON, OE., NEW YOR'K, N. Y.

TRANSOiVl-LIFTER.

LSPECIFICATION.forming part of Letters Patent No. 723,447, dated March24, 1903.

Application tiled June 24, 1902.

To all whom it may concern.:

.Be it known that I, OLIVER NELsON EATON, a citizen of the United Statesof America, residing in the city of New York, State of New York, haveinvented certain new and useful Improvements in Transom-Lifters; and Ido hereby declare the following tol be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to gures of reference marked thereon,which form a part of this specification. j

My invention relates to devices to impart a partial rotation to a shaft,and more especially to the shafts that sim ultaneously open and close aseries of transoms, and is especially adapted for use in a greenhousewhere rows of ventilators are to be opened andshut, and has for itsobject a simplification and cheapening of the device and inclosing theoperating parts, so as to prevent them from exposure to moisture anddirt.

It has been found to be a great desideratum4 to providey a device thatwill open and shut vthe ventilators of greenhouses by continuousmovement without sticking or jerking. vOn

account of the light structure of the framing of greenhouses and thelarge area of glass used in the ventilators the sticking of such devicesduring opening will jar the ventila- Itors to such an extent that puttywill be shaken loose from the glass and the dust and dirt from oi theventilators. shaken-into the building..

Referring to the drawings, in which like parts are similarly designated,Figure 1 shows my device in operative relation to aline-shaft thatOperates a series of ventilators in a greenhouse. Fig. 2 1s a section ofa portion thereof on a larger scale. Fig. 3 is a section of Fig.

2 on the line A B.

On the line-shaftl is secured a number of levers 2, hinged to arms 3,connected to the sash to be lifted. On the shaft 1 is fixed a band-wheel4 by means of set-screws 5, passing through its boss 4a. The band-wheelis provided with a ange 6, somewhat from the edge of the` wheel, towhich is secured at 6 one end of a fiexible connection 7. The band-Serial No. 112,994. (No modelJ.

wheel is inclosed in a casing 8, that covers flange 6 and takes over theedge of the wheel, said casing having a boss 8a, that is journaled onthe boss 4a of the band-Wheel. To this casing is connected a pipe 9,tangential to the periphery ot' the band-wheel, so that the flexibleconnection Vwhose free end is connected to a threaded rod 9=L in thepipe 9 can leave the band-wheel and be drawn into this pipe by said rod.The lower end of this pipe is threaded into a union or filler 10, whichis threaded into a casing 11. Into the bottom of the casing 11 issecured an oil-well 12, and threaded into the upper end of the oil-welland within the casing `11 is a sleeve 13, designed to support abevel-pinion 14 and provided with an Oil-passage 15, through which oilcan be poured into lthe well. The pinion 14 is journaled in the union10, that has formed in its lower face a raceway for balls 16, forming aball-bearing. Gearing with the pinion 14 is a similar pinion 17,journaled on a boss 11a, formed on the casing 11, and the stub-shaft 18of the pinion 17 projects from the sleeve 11a and carries a hand-crank19.

Just below the casing 11 is a collar 20, secured to the oil-well bymeans of the set- `screw 2l, and the lower end ot the oil-well issecured to the pipe 22 by means of the setscrew or screws 23. This pipe22 seats in a foot or base plate 24 and is held therein bya set-screw25. The whole device is supported from the foot 24 and pipe 22, so as totake the weight oft the counter-shaft. The cheapness of the constructionof these devices does not allow of expensive foundation for theirsupport, and for this reason a simple casting, as 24, is used as a base,and it Often happens that due to the settling of the ground and thebase-casting with it the device will tend to hang on the shaft'.In'order to take up this weight, I surround the oil-well with the ratherheavy coil-spring 26, held between the collar 2O Iand the end of thepipe 22. By loosening the set-screw 23 in pipe 22 the upper part of' thedevice will be lifted by the spring 26 an extent equal to the settlingat the base, the coil-spring thusV taking up the weight duringadjustment.

Referring more particularly t-o Fig. 3, the belt-pulley 4 is providedwith a long sleeve A4a havinfr setscrews 5 securing it to the shaft,while the casing is seated on this sleeve. v

The operation of the device is as follows: The turning of the crank 1S)will revolve the pinion 17, which in turn rotates the pinion 14. Thispinion, having an internal thread, acts as a nut and draws down thescrew-rod 9, which in turn pulls the band 7 and r0- tates the band-wheel4 and the shaft 1, to which the latter is secured, thereby lifting theventilators during the descentofthe rod. The threaded end at the sametime passing through the pinion or nut 14 dips into the oil-well 12, andthereby automatically oils the lower threaded portion of the rod. Thebottom of the oil-well acts as a stop to prevent the rod from beingpulled down too far and the shaft 1 likewise rotated too far and theventilators being forced off their hinges.

The flexible band or element 7 may be a piece of steel, a square-linkchain, a piece of wire rope, or equivalent device that hassufcientstiffness to stand the downward pull and upward pressure, while thebuckling of these flexible connections is prevented by the narrow spacebetween the ange of the band-wheel and its casing, thereby enabling theshaft 1 to be rotated by pushing the flexible connection as well as bypulling it.

Should it be desired, the collar 2O and spring 26 may be omitted; butthe adjustment of the device is then quite difficult.

Having thus described myinvention, what I claim as new therein, anddesire to secure by Letters Patent, is-

1. The combination with a shaft, a bandange, a flexible element securedat one end to the flange in said space and means connected to the otherend of the element to longitudinally move it in two directions, saidflange and casing cooperating to hold the element in position andprevent it'from buckling when it is moved in one of said directions,substantially as described.

2. In combination, a shaft, a band-wheel having a boss secured thereto,a casing encompassing the band-wheel and having bearing on the boss ofthe former, a band secured to the flange of the band-wheel, and athreaded rod connect-ed to the band, an oil-reservoir at the end of saidrod and means to re ciprocate the rod and cause its end to pass into andont of the oil-reservoi r, substantially as described.

3. In combination, a shaft, a rod threaded on its end, a flexibleconnection between the shaft and rod, a pinion having an internal threadthrough which said rod passes, a second pinion gearing therewith, acasing for the pinions, a ball-bearing between the Iirst pinion and thecasing,and an oil-reservoir below the irst pinion into which the rodmoves and is stopped thereby, substantially as set forth.

4. In combination, a shaft to be rotated, a band-wheel thereon having aboss, a casing for the band-wheel jburnaled on the boss a gear-casing, apipe connecting the two casings, a union between the pipe and secondcasing provided with a raceway, a rod in said pipe having a threadedend, a flexible connection between the band-wheel and rod, a threadedpinion through which said rod passes, ball-bearings between said pinionand raceway an oilreservoir below the pinion into which the end of therod passes,substan tially as set forth.

5. In combination, a band-wheel, a casing therefor, a second casing, apipe connecting them, a rod in said pipe, a flexible connection betweenthe band-wheel and rod, mechanism in the second casing to reciprocatethe rod, an'oil-reservoir screwed into the bottom lof the second casing,a pipe secured to the reservoir and a coil-spring between the secondcasing and pipe, substantially as and for the purposes set forth.

6. The combination with a shaft, a bandwheel, a-casing therefor, ametallic band secured at one end to the wheel, said casing cooperatingwith the wheel to prevent the band from buckling when it isshoved,`means to pull and shove the band, asecond casinghaving anoil-reservoir to contain said means, a pipe 22 and a collar, bothadjustably secured to the reservoir and a coil-spring between the end ofVsaid pipe and collar, substantially as described.

In testimony that I claim the foregoing as my invention I have signedmynamein presence of two subscribing witnesses.

OLIVER NELSON EATON. Witnesses:

HENRY ORTH, Jr., PHILIP F. LARNER.

